[Bug tree-optimization/26854] [4.3/4.4/4.5 Regression] Inordinate compile times on large routines

[lucier at math dot purdue dot edu]

------- Comment #115 from lucier at math dot purdue dot edu  2010-03-27 05:20 -------
Created an attachment (id=20222)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20222&action=view)
time/mem report compiling compiler.i with -O1

Here is the time and memory report with -O1 -fschedule-insns2 on the same
machine as the -O3 -fschedule-insns report.

The biggest times are:

 parser                : 224.89 (54%) usr   2.61 (24%) sys 226.97 (53%) wall 
103148 kB (15%) ggc
 tree CFG cleanup      :  60.61 (15%) usr   0.00 ( 0%) sys  60.58 (14%) wall   
1388 kB ( 0%) ggc
 reload                :  19.17 ( 5%) usr   0.00 ( 0%) sys  19.17 ( 5%) wall   
4694 kB ( 1%) ggc
 TOTAL                 : 413.29            10.95           424.28            
709657 kB


-- 

lucier at math dot purdue dot edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #20220|0                           |1
        is obsolete|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26854